121040034402401 has 4 divisors (see below), whose sum is σ = 121061430914052. Its totient is φ = 121018637890752.

The previous prime is 121040034402337. The next prime is 121040034402421. The reversal of 121040034402401 is 104204430040121.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 27246155446225 + 93793878956176 = 5219785^2 + 9684724^2 .

It is a cyclic number.

It is not a de Polignac number, because 121040034402401 - 2⁶ = 121040034402337 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (121040034402421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10698247340 + ... + 10698258653.

It is an arithmetic number, because the mean of its divisors is an integer number (30265357728513).

Almost surely, 2^{121040034402401} is an apocalyptic number.

It is an amenable number.

121040034402401 is a deficient number, since it is larger than the sum of its proper divisors (21396511651).

121040034402401 is an equidigital number, since it uses as much as digits as its factorization.

121040034402401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21396511650.

The product of its (nonzero) digits is 3072, while the sum is 26.

Adding to 121040034402401 its reverse (104204430040121), we get a palindrome (225244464442522).

The spelling of 121040034402401 in words is "one hundred twenty-one trillion, forty billion, thirty-four million, four hundred two thousand, four hundred one".